According to the Sept. 19 White House fact sheet, "The President calls on [the super committee] to undertake comprehensive tax reform, and lays out five principles for it to follow: 1) lower tax rates; 2) cut wasteful loopholes and tax breaks; 3) reduce the deficit by $1.5 trillion; 4) boost job creation and growth; and 5) comport with the "Buffett Rule" that people making more than $1 million a year should not pay a smaller share of their income in taxes than middle-class families pay."

But the administration's tax plan violates these principles. It raises rather than lowers tax rates, shrinks tax deductions to pay for more spending, makes no believable contribution to economic growth, has nothing specific to say about the Buffett Rule, and allocates a third of the proposed $1.5 trillion tax increase over the next decade to such miscellany as the temporary payroll tax break, more subsidies for state and local government jobs, and prolonged unemployment benefits.

Nearly all of Mr. Obama's new tax increases are identical to those in his failed budgets of 2011 and 2012. But the repackaging of stale ideas is partly concealed by intermingling the phasing-out of deductions and exemptions with allowing the Bush tax rates to expire, thus increasing the top two tax rates to 36% and 39.6% from 33% and 35%. This intermingling gives the false impression that $866 billion in projected additional revenue comes from raising the top tax rates alone.

The Treasury Department's more candid explanation of these same proposals in the 2011 budget estimated that raising the top two tax rates would bring in only an extra $36.4 billion a year from 2011 to 2020, which adds up to little more than $400 billion from 2012 to 2021. The administration's 2011 proposal to raise the tax rate on capital gains and dividends to 20% from 15% on upper incomes was estimated to raise an even punier $10.5 billion a year. But the 3.8% surtax in ObamaCare already raised those tax rates to 18.8% to finance health-insurance subsidies, leaving no meaningful revenue from that source.

In other words, most of that large, $866 billion 10-year tax hike comes from phasing out personal exemptions and deductions. These are not "tax breaks that small businesses and middle-class families don't get," as the president claimed on Monday in his Rose Garden remarks. The phase-outs apply to the same exemptions and deductions enjoyed by those earning less than $250,000, including deductions for mortgage interest, charitable contributions, and state income taxes.

Mr. Obama's second biggest tax increase, supposedly worth $410 billion over 10 years according to the fact sheet, comes from further reducing "the value of itemized deductions and other tax preferences to 28% for those with high income." The phasing out itemized deductions for upper-income taxpayers would shrink those deductions by as much as 80%, so this additional cap would limit any remaining deductions to 28 cents on the dollar. The combination would be severe. Ask any charity.

As for corporate taxes, Mr. Obama said in the Rose Garden that "We can lower the corporate rate if we get rid of all these special deals." But his plan does not include a lower corporate rate. Instead it earmarks the revenue from eliminating any loopholes and "special deals" to pay for the $447 billion jobs bill.

This brings us to the president's puzzling remarks about "the Buffett Plan," which has no clear connection to anything in his own plan. Mr. Obama has said that anyone who thinks "somebody who's making $50 million a year in the financial markets [i.e., Warren Buffett] should be paying 15 percent on their taxes, when a teacher making $50,000 a year is paying more than that" should "have to defend that unfairness. . . . They ought to have to answer for it."

Warren Buffett's large capital gains (mostly unrealized) and token $100,000 salary are by no means typical. IRS statistics show those earning more than $1 million paid 28.9% in federal income taxes in 2009, compared with 24.6% for those earning from $200,000 to $500,000 and 11.6% for those earning from $50,000 to $75,000.

However, if Mr. Obama is seriously suggesting that marginal tax rates should be the same for the working teacher's salary as for the retired teacher's capital gain, then he may be flirting with a rerun of George McGovern's 1972 presidential campaign theme that, "Money made by money should be taxed at the same rate as money made by men."

Unlike Mr. McGovern, though, Mr. Obama has not yet proposed a capital gains or dividend tax higher than 20%. If the rhetorical Buffett Rule has any meaning at all, it appears to be nothing more than a presidential hint to the congressional super committee that he would like them to propose (as he has not) that incomes above $1 million face a 28% tax on capital gains and dividends.

The trouble is that such a Buffett Rule would quite certainly reduce rather than enlarge federal revenue. That's because we know from experience that a 28% tax on selling stock or property greatly reduces the amount offered for sale. Wealthy people then sit on more unrealized capital gains rather than subjecting themselves to a stiff tax penalty on selling those assets. The 28% tax on long-term capital gains brought in only $36.9 billion a year from 1987 to 1997, according to the Treasury Department, while the 15% tax brought in $96.8 billion a year from 2004 to 2007.

Putting aside the seemingly empty threat of a Buffett Plan tax on capital gains, the president's new-old plan to raise income taxes on families and small businesses earning more than $250,000—to pay for temporary tax gimmicks and extra spending—is just stale wine in a new bottle.

Any plan that would impose permanently higher tax rates on income to pay for temporarily lower tax rates on payrolls is no stimulus or jobs plan under any sort of economics. Neither is a tax-financed extension of unemployment benefits. It's a tax-and-spend plan, and a bad one.

Mr. Reynolds, a senior fellow with the Cato Institute, is the author of "Income and Wealth" (Greenwood, Press 2006).